Patents by Inventor Koichi Suga

Koichi Suga has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polyarylene sulfide resin composition, and moldings and connectors made of it
    Publication number: 20010047053
    Abstract: Provided is a polyarylene sulfide resin composition of which the moldings are burred little and which has good mechanical properties and good flow moldability. The composition comprises from 20 to 90% by weight of a polyarylene sulfide and from 10 to 80% by weight of an inorganic filler, and is characterized in that its burrs are on the level of at most 120 &mgr;m, that it has a weld strength of at least 50 MPa and that the length of its spiral flow having a thickness of 1 mm is at least 100 mm. Preferably, the polyarylene sulfide to be in the composition has a specific index to the degree of branching and a specific flexural strength.
    Type: Application
    Filed: June 27, 2001
    Publication date: November 29, 2001
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masaya Okamoto, Minoru Senga, Koichi Suga, Kenji Seki
  • Polyarylene sulfide resin composition, and moldings and connectors made of it
    Patent number: 6316536
    Abstract: Provided is a polyarylene sulfide resin composition of which the moldings are burred little and which has good mechanical properties and good flow moldability. The composition comprises from 20 to 90% by weight of a polyarylene sulfide and from 10 to 80% by weight of an inorganic filler, and is characterized in that its burrs are on the level of at most 120 &mgr;m, that it has a weld strength of at least 50 MPa and that the length of its spiral flow having a thickness of 1 mm is at least 100 mm. Preferably, the polyarylene sulfide to be in the composition has a specific index to the degree of branching and a specific flexural strength.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: November 13, 2001
    Assignees: Idemitsu Kosan Co., Ltd., Idemitsu Petrochemical Co. Ltd., Petroleum Energy Center (PEC)
    Inventors: Masaya Okamoto, Minoru Senga, Koichi Suga, Kenji Seki